Sand cutting and screening machine



Oct. 28, 1924. 1,513.283 I B. M. SIMPSON SAND CUTTING AND' SCREENING MACHINE Filed Feb. 20. 1922 .3 Sheets-Sheet 1 l ar 61cm wag Oct. 28, I924. 1,513,283

B. M. SIMPSON I SAND CUTTING AND SCREENING MACHINE Filed Feb. 20, 1922 v 3 Sheets-Sheet 2 I N & 31400444701, lZ/ZJ'ZWJ' attocn-e 1 1,513,283 a. M. SIMPSON v 'SAND CUTTING AND SCREENING MACHINE Filed Feb. 20, 1922 IS Sheets-Sheet 5 Patented st. 28, 12A.

UNITE r ranges SAND CUTTING AND SCREENING MACHINE.

'A-pplication filed February 20, 1922. Serial No. 537,941.

T 0 a-ZZ whom it mag/condemn Be it known that 1, Born M. SIMPSON, a citizen of the United States, residing at Bellefontaine, in the county of Logan and State of Ohio, have invented a new and useful Sand Cutting and Screening Machine, of

. the machine, novel means being also provided for feeding the material to the car rier.

A still further object of the invention is to provide means for throwing the various elements of the machine into and out of operation at the will of the operator to accomplish the treating of the sand.

\Vith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawings Figure 1 is a side elevational view of a machine constructed in accordance with the present invention.

Figure 2 is a plan view of the same. Figure 3 is an enlarged detail view partly in section disclosing one of the feeding elements of the machine.

Figure 4 is a sectional view taken on line of Figure 8.

Referring to the drawings in detail, the frame of the machine includes the lower spaced side bars 5 and 6 respectively, which are connected by a suitable transversely extending bar 8. Operating between the side bars 5 and 6 is an invented U frame 10 which includes side bars 9 disposed above the side bars 5 and 6, the same being held in suitable spaced relation with the bars 5 and 6 as by means of the vertical frame 10 and bar 11 mounted at opposite ends of the frame.

As shown, the frame 10 has connection with the upper bars 9 and extends clownwardly terminating at points in close proX imity with the surface on which the machine is positioned. The lower ends of the frame 10 have connection with the channel irons 12 which form the guides for the endless conveyor 13 that operates over the rollersl and 15 disposed adjacent to opposite ends of; the machine, it being understood that the roller 15 is supported adjacent to the rear end of the upper bars 9, while the roller 14 is sup-ported adjacent to. the supporting wheels 16 of the machine. I The roller 15 is supported on the shaft 100 that has its ends disposed in the bearings 101 secured to the frame of the machine. Thus it will be seenthatwhile the shaft 100 acts to drive the roller 15' and. endless conveyor,

the shaft also provides a pivot to permit the lower end of the endless conveyor to be swung upwardly. v

Suitable brackets 17 have connection with the channel irons of frame 10, which brackets are provided with bearings for supporting the axle 18, which in turn accommodates the wheels 16. Supported at the forward end of the machine is a plate 19wvhich is curved and provided with a cut out portion 20, which cut out portion lies directly over the endless conveyor 13 to permit material to be deposited on the endless conveyor after the same has been. carried over the plate 19 by the feeding members 21. i

Bars 22 are carried at the front ofthe frame and are secured to the bars 5 and 6 thereof, the bars 22 being provided with bearings 23 adapted to accommodate the shaft "2 1 that extends transversely. of the machine, the shaft being preferably square in cross section to accommodate the supporting armsof the feeding members 21. Each supporting arm of the feeding members includes an upper bearing member 25, and a lower arm 26 which is provided with a cut out portion to accommodate the squared shaft, the bearing members 25 being secured to the arms 26 as by means of the bolts 27,

Each arm 26 is hollowed out to accommodate the coiled spring 28 that bears against one end of the arm 29 to normally urge the member 21 supported at one end thereof downwardly, there being provided a suitable opening 30 in each arm 26 to accommodate the set screw 31 associated therewith that holds the member 21 of the feed.

ing device at a proper angle with respect to the plate 19 over which the feeding devices move.

As clearly shown by Figure 2 of the drawings, the feeding members 21 are disposed at various angles to cause the material being fed into the machine, to be carried over the plate 19. From the foregoing it will. be seen that should astone or other foreign matter be carried onto the plate 19, the members 21 will move upwardly within the hollow portions of the arms 26, thereby eliminating any possibility of breaking or injuring the feeding members.

At one end of the shaft 24 is positioned a sprocket 32 over which operates the chain 33 that also moves over the sprocket 34 carried at one end of the shaft 35 that is disposed at the rear end of the machine, the shaft 35 being however supplied with a suitable clutch mechanism 36 which is controlled by means of the clutch lever 37, whereby the pinion 34 may be clutched into and out of operation to accomplish the rotation of the feeding members.

The shaft 35 is also supplied with a clutch mechanism 38 at the opposite end thereof, which clutch mechanism is controlled by means of the operating lever 39 sothat the shaft may be clutched to the sprocket 40 which normally runs loose 011 the shaft 35. Movement of the main shaft 41 is imparted to the shaft 35, through the sprocket 42 and chain 43 which operates over the sprockets 40 and 42. A motor indicated at 44 is supported by the frame,'the rotor shaft 45 thereof being supplied with a pinion 46, which meshes with a pinion 47, which is keyed or otherwise secured to the shaft 41 to impart rotary movement thereof.

A. relatively small pinion 46 is also secured to the shaft 41 and is normally in mesh with the relatively large pinion 49 which runs loose on the shaft 50 which in turn is mounted in the bearings 51 and 52 supported at opposite sides of the frame. Associated with the pinion 49 is a clutch mechanism 53 controlled by the lever 54 so that the pinion 49 may be clutched to the shaft 50 to accomplish the rotation thereof.

Secured to the shaft 50 is a sprocket wheel. over which operates the chain 56 that also moves over the sprocket 57 that is secured to the shaft 58, relatively small sprocket 59 being also secured to the shaft 58 to take off the power from the shaft 58 and direct the same to the sprocket wheels 60 mounted on the shaft 18, through the medium of the chains 61. Thus it will be seen that whenthe lever 54 is operated, the sup porting wheels 16 are out into operation to the end that the maciine may be moved along the surface on which the same is sup ported.

The rear ends of the bars 5 and 6 extend beyond the bars 11, where the same have connection with the pivoted links 62, which support the sieving member 63 in a manner to permit movement of member 63 which has connection with the eccentric 65 through arm 64 forming a part of the shaft so that as the shaft 35 rotates, a reciprocat ing movement will be imparted to the sieving element 63. V

In order that the plate 19 may be elevated to a position to permit the machine to be moved, flexible members 66 have connection with the lower portions of the frame as through the medium of the eye bolts 67, the opposite end of the flexible members 66 being wound on the drum 68 that is controlled by the crank handle 69. From the foregoing it will be seen that the lower portion of the frame which carries the plate 19 may be raised and lowered at the will of the operator.

At the forward end of the machine is a supporting wheel 7 O which may be connected to the machine in any suitable manner.

' On one end of the roller 15 is mounted a sprocket 71 which accommodates the chain 72 that transmits motion from the sprocket 7 3 to the sprocket 71, the sprocket 7 3 being secured to the shaft 35 to receive motion therefrom. Due to this construction, it will be seen that rotary motion will, be imparted to the endless conveyor to carry the material to the sieving element.

In the operation of the machine, the ma chine is moved to a position in proximity to the material, whereupon the machine is set in motion. causing the feeding member 21, to revolve and carry the material forward over the plate 19, where the same is delivered to the endlessconveyor 13. It follows that the material is fed onto the sieving element 63 which is reciprocated to accomplish the sieving thereof, the finer particles dropping through the sieve, while the larger portions remain thereon.

Having, thus described the iiiventiomwhast is claimed as new is 1. In. a machine of tile class described, a supporting frame, a movable frame, a plate supported. by the movable frame, feeding members operating over the plate, a shaft for supporting the feeding members, each of said feeding members including arms secured to the shaft,said arms having hollow portions, arms extending into the hollow portions, springs in the hollow portions for moving the last mentioned arms with respect to the first mentioned arms, and means supported by the arms and adapted to move over the plate to force material rearwardly thereon.

2. In a machine of the class described, a supporting frame, a movable frame on the supporting frame, a plate carried by the movable frame, feeding members associated with the plate for moving material thereover, each feeding member including an inner arm and an outer arm, the outer arm adapted to move within the inner arm, resilient means for moving the outer arm with respect to the inner arm, and means for preventing; rotation of one arm with respect to the adjacent arm.

In testimony that I claim the foregoing as my own I' have hereto afiixed my signa- 10 ture in the presence of two witnesses.

BOYD M. SIMPSON. Witnesses:

J. L. SIMPSON, H. L. SIMPSON. 

